Alcoa 2015 Annual Report Download - page 44

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Sources and Availability of Raw Materials
The major raw materials purchased in 2015 for each of the Company’s reportable segments are listed below.
Alumina Primary Metals
Bauxite Alloying materials
Caustic soda Alumina
Electricity Aluminum fluoride
Fuel oil Calcined petroleum coke
Lime (CaO) Cathode blocks
Natural gas Electricity
Liquid pitch
Natural gas
Global Rolled Products Engineered Products and Solutions
Alloying materials Alloying materials
Aluminum scrap Electricity
Coatings Natural gas
Electricity Nickel alloys
Lube oil Primary aluminum (ingot, billet, P1020, high purity)
Natural gas Resin
Packaging materials Stainless steel
Primary aluminum (ingot, slab, billet, P1020, high purity) Steel
Steam Titanium alloys
Titanium sponge
Transportation and Construction Solutions
Aluminum coil
Electricity
Natural gas
Paint/Coating
Primary aluminum (ingot, billet, P1020, high purity)
Resin
Scrap aluminum
Generally, other materials are purchased from third-party suppliers under competitively priced supply contracts or
bidding arrangements. The Company believes that the raw materials necessary to its business are and will continue to
be available.
For each metric ton of alumina produced, Alcoa consumes the following amounts of the identified raw material inputs
(approximate range across relevant facilities):
Raw Material Units Consumption per MT of Alumina
Bauxite mt 2.2 – 3.7
Caustic soda kg 60 – 150
Electricity kWh 200 – 260 total consumed (0 to 210 imported)
Fuel oil and natural gas GJ 6.3 – 11.9
Lime (CaO) kg 6 – 58
20